FIELD: shipbuilding.
SUBSTANCE: invention relates to shipbuilding and can be used in designing ships to reduce resistance when moving high-speed vessels using a dynamic air cushion. Disclosed is a device for reducing hydrodynamic resistance of a ship hull bottom on a compressed airflow with a high-pressure air pump in the form of an impeller with a nozzle, a steering device, onboard skegs, wherein rigid hull of ship hull is made in cross section of curved shape with convexity towards water support surface and is equipped with envelopes thereof along entire length by transverse through air outlet channels in bottom of pneumatic channel enclosing cross-section of rigid hull bottom in underwater part below waterline, wherein the transverse through air outlet channels are formed by successively attached to the bottom of the pneumatic channel curved in section plates, oriented by free elongated ends towards the stern part, said channels receive compressed air from pneumatic channel to form vortex zone at the end of curvilinear plate on the side of convexity of the next plate, and as a result, production of finely dispersed air-droplet medium with boundary layer in the form of air lubrication for vessel hull.
EFFECT: higher speed capabilities and reduced power consumption at ship motion mode above water.
1 cl, 5 dwg
